1973 Fiat 124 Cooling System Parts

This table covers the engine coolants and antifreeze formulations specified for this cooling system. Typical signs include a rising temperature gauge, rusty or sludged coolant, or a heater that blows cold. Use the chemistry named in the notes. Mixing silicate, OAT and HOAT formulas can gel in the radiator. Read more

15 Coolant / Antifreeze parts are listed for the 1973 Fiat 124, from PEAK, PRESTONE, FVP and 1 other brand. FVP MV5050GAL carries the "Popular" badge. All of them fit every engine offered in the 1973 124.

The Compatible With All Colors section lists 1 option from PRESTONE — grouped under the catalog's "Compatible With All Colors" designation — the notes column spells out what sets them apart. PRESTONE AF3055 is listed in this group.

In the Economy grade, FVP, PRESTONE, PEAK and 1 other brand supply 4 parts: the catalog's value-priced group. A representative part number is FVP MV5050GAL.

The Premium section lists 4 options from PRESTONE and PEAK — a step above OE specification in materials, tolerances or warranty terms. PRESTONE AF2100 is listed in this group.

The Standard Replacement section lists 6 options from PEAK, FVP and PRESTONE — built to original-equipment specification. FVP GREEN5050GAL is listed in this group.

This table covers the adapters used to pressure-test this cooling system. Read more

3 Cooling System Tester Adapter parts are listed for the 1973 Fiat 124, from ACDELCO, GATES and MOTORAD. All of them fit every engine offered in the 1973 124.

Listed part numbers: ACDELCO 12A01, GATES 31413 and MOTORAD 3003.

This table covers the caps that hold system pressure at the radiator or reservoir neck. Typical signs include a leak at the neck, a cap that will not hold pressure, or a missing tether. Match the pressure rating or thread in the notes — radiator, reservoir and fuel caps are not interchangeable. Read more

7 Radiator Cap parts are listed for the 1973 Fiat 124, from GATES, MOTORAD, SKP and 1 other brand. GATES 31527 carries the "Popular" badge. All of them fit every engine offered in the 1973 124.

The Locking Replacement section lists 3 options from GATES, MOTORAD and SKP — grouped under the catalog's "Locking Replacement" designation — the notes column spells out what sets them apart. GATES 31511 is listed in this group.

The Standard Replacement section: 4 options from GATES, MOTORAD, CALORSTAT and 1 other brand. GATES 31527 is listed in this group.

Part numbers include GATES 31527, GATES 31511 and MOTORAD ST13, among others listed above.

This table covers the upper, lower and connecting hoses between radiator, engine and reservoir. Typical signs include swelling, cracks, a soft spot, or a leak at a clamp. Replace adjacent aged hoses while the system is drained — they share the same heat cycle. Read more

22 Radiator Hose parts for the 1973 Fiat 124 come from 4 brands — DAYCO, ACDELCO, GATES and 1 other brand. The "Popular" part is DAYCO 81041. 4 parts fit every engine; the other 18 are engine-specific.

The Economy section: 10 options from DAYCO, GATES, CONTINENTAL and 1 other brand. DAYCO 81041 is listed in this group.

Standard Replacement: 10 parts, from ACDELCO, GATES, DAYCO and 1 other brand. A representative part number is ACDELCO 20073S.

In the Universal Hose (Straight, Bulk) grade, ACDELCO and DAYCO supply 2 parts: grouped under the catalog's "Universal Hose (Straight, Bulk)" designation — the notes column spells out what sets them apart. A representative part number is ACDELCO 31006.

This table covers the senders that report coolant temperature to the gauge or ECU. Typical signs include a gauge that sits on empty or overheat, or a lamp that does not match what the engine is doing. Rule out the cluster and the wiring before replacing the sender. Read more

One part is listed for the 1973 Fiat 124 — STANDARD MOTOR PRODUCTS TS109.

This table covers the thermostats that open the coolant circuit at the specified temperature. Typical signs include slow warm-up, a gauge that climbs in traffic, or heat that never quite arrives. Replace the housing gasket with the thermostat and bleed the system so a trapped air pocket does not cook the new part. Read more

4 Thermostat parts for the 1973 Fiat 124 come from 2 brands — BECK/ARNLEY and MOTORAD.

Part numbers include BECK/ARNLEY 1430156, BECK/ARNLEY 1430149 and BECK/ARNLEY 1430131, among others listed above.

This table covers the seals at the thermostat housing and water outlet. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

3 Thermostat / Thermostat Housing / Water Outlet Seal parts are listed for the 1973 Fiat 124, from GATES and MOTORAD.

This group includes GATES 34030, GATES 33635 and MOTORAD MG38.

This table covers the pumps that circulate coolant through the block and radiator. Typical signs include coolant at the weep hole, pulley play, or a growl from the front of the engine. Replace the thermostat and refill with the specified coolant whenever the pump comes off. Read more

2 Water Pump parts for the 1973 Fiat 124 come from 2 brands — FVP and US MOTOR WORKS.

Listed part numbers: FVP US9203, plus the other parts above.